[BUG] Chat Regenerate does not respect websocket preferences

[ggallo]

Describe the bug

If you deploy with WS streaming disabled, requests to regenerate LLM responses will use WS regardless. This is a hazard for customers that need to deploy without WSS due to APIGW lack of private WS APIs.

To Reproduce

1. Deploy v1.2.7 with VITE_APP_USE_STREAMING = false
2. Start a conversation and wait for a response
3. Click Regenerate
4. Open devtools and notice the request to regenerate goes over WSS

Screenshots

Notice the initial POST, then multiple requests to regenerate are opening WSS connections

[statefb]

@ggallo We'll make USE_STREAMING be deprecated because it's hard to maintain the option with keeping backward compatibility to add new features. Thank you for your understanding.

[github-actions[bot]]

This issue has been labeled as "stale" due to no response by the reporter within 1 month (and 14 days after last commented by someone). And it will be closed automatically 14 days later if not responded.

[github-actions[bot]]

This issue has been closed due to no response within 14 days after labeled as "stale", 14 days after last reopened, and 14 days after last commented.